tert-Butyl peroxybenzoate, TBPB
The reaction of tert-butyl peroxybenzoate (TBPB) and ammonia/amines provides the corresponding primary, secondary, and tertiary amides under catalyst- and solvent-free conditions in excellent yields. TBPB is an efficient and highly chemoselective benzoylating reagent for aliphatic amines in the presence of aromatic amines and hydroxyl groups.
D. K. T. Yadav, B. M. Bhanage, Synlett, 2015, 26, 1862-1866.
A radical-promoted decarboxylation enables a transition-metal-free phosphorylation of cinnamic acids with P(O)H compounds under mild conditions. This method provides simple, efficient, and versatile access to a broad range of valuable (E)-alkenylphosphine oxides in good yields.
L. Liu, D. Zhou, J. Dong, Y. Zhou, S.-F. Yin, L.-B. Han, J. Org. Chem., 2018, 83, 4190-4196.
An efficient I2/TBPB mediated oxidative formal [4 + 1] cycloaddition of N-tosylhydrazones with anilines represents a simple, general, and efficient approach for the construction of 1,2,3-triazoles under metal-free and azide-free conditions.
Z.-J. Cai, X.-M. Lu, Y. Zi, C. Yang, L.-J. Shen, J. Li, S.-Y. Wang, S.-J. Ji, Org. Lett., 2014, 16, 5108-5111.